Historical
IEC 61326-2-4 Ed. 1.0 b:2006
Electrical equipment for measurement, control and laboratory use - EMC requirements - Part 2-4: Particular requirements - Test configurations, operational conditions and performance criteria for insulation monitoring devices according to (TITLE TRUNCATED)
specifies more detailed test configurations, operational conditions and performance criteria than IEC 61326-1 for equipment for - insulation monitoring according to IEC 61557-8 -insulation fault location according to IEC 61557-9; This applies to insulation monitoring devices and insulation fault location systems permanently or semi-permanently connected to the distribution system.
International Electrotechnical Commission [iec]